There are big ticket things that any government could abolish and I doubt the public would even notice such as the department of Culture. The reason they don't is because it means thousands of Civil servants will lose their jobs.2TK ran away from your last recommendation as his MPs kicked off.
Not about money or budgets for these millionaires it’s about votes!
Then there is our over complicated tax system. A tax expert pointed out that there are many tax schemes that over lap because when the Chancellor announces their latest gimmick they don't cancel similar schemes so the system just gets more and more complex.
An independent tax commission could be tasked with simplifying the system with a zero impact to the overall next tax take. For example it suggests you cancel 200 schemes which net 1bn in tax revenue and in return you raise income tax to compensate.
The reason they wont do that is that this provides gainful employment for Treasury civil servants and the whole accountancy sector. It suits them for it to be complicated. Less regulations, less need for staff.